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IOS Sqlite用户界面增删改查案例

时间:2017-05-29 21:41:22      阅读:180      评论:0      收藏:0      [点我收藏+]

标签:insert   prim   data-   nsarray   res   cts   抽象   ace   通过   

1.案例简单介绍

对SQLite操作进行了简单的封装,将对数据表操作转变成对对象的操作,并通过UI界面完毕对用户表的增、删、改、查,执行界面例如以下图所看到的
技术分享a

2.项目project文件夹


技术分享
UserModel类为用户对象模型。与数据库表中字段一一相应
BaseDB类为对sqlite简单封装,抽象出对数据库操作的三个方法。详细内容看http://blog.csdn.net/whzhaochao/article/details/38865535博文
UserDB继承于BaseDB。主要是完毕UserModel对象的增、删、改、查,其内容例如以下
UserDB.h
//
//  UserDB.h
//  SqliteDemo
//
//  Created by 赵超 on 14-8-27.
//  Copyright (c) 2014年 赵超. All rights reserved.
//

#import "BaseDB.h"
#import "UserModel.h"

@interface UserDB : BaseDB{
    
}
//单例
+(id)shareUserDB;
//创建User表
-(void)creatTableWithDataBaseName:(NSString*) dbName;
//添加一个UserModel
-(BOOL)addUser:(UserModel*)userModel dbName:(NSString*)dbName;
//改动一个UserModel
-(BOOL)updateUser:(UserModel*)userModel dbName:(NSString*)dbName;
//查询全部
-(NSArray*)findAllUser:(NSString*)dbName;
//删除一个对象
-(BOOL) deleteUser:(UserModel*)userModel dbName:(NSString*)dbName;

@end
UserDB.m
//
//  UserDB.m
//  SqliteDemo
//
//  Created by 赵超 on 14-8-27.
//  Copyright (c) 2014年 赵超. All rights reserved.
//

#import "UserDB.h"

@implementation UserDB

static UserDB * db;

+(id) shareUserDB{
    if (db==nil) {
        db= [[UserDB alloc] init];
    }
    return  db;
}

-(void)creatTableWithDataBaseName:(NSString*) dbName{
    NSString *sql=@"create table user( userName text primary key,passWord text, userEmail text)";
    [self createTable:sql dataBaseName:dbName];
    
}

-(BOOL) deleteUser:(UserModel*)userModel dbName:(NSString*)dbName{
        NSString *sql=@"delete from user where userName =?";
        NSArray *params=@[ userModel.userName];
     return  [self execSql:sql parmas:params dataBaseName:dbName];
}


-(BOOL)addUser:(UserModel *)userModel dbName:(NSString *)dbName{
    NSString *sql=@"insert into user (userName,passWord,userEmail) values (?,?,?

)"; NSArray *params=@[userModel.userName,userModel.passWord,userModel.userEmail]; return [self execSql:sql parmas:params dataBaseName:dbName]; } -(NSArray*) findAllUser:(NSString *)dbName{ NSString *sql=@"select userName,passWord,userEmail from user"; NSArray *result= [self selectSql:sql parmas:nil dataBaseName:dbName]; NSMutableArray *users=[NSMutableArray array]; for (NSDictionary *dic in result) { UserModel *user=[[UserModel alloc] init]; user.userName=[dic objectForKey:@"userName"]; user.passWord=[dic objectForKey:@"passWord"]; user.userEmail=[dic objectForKey:@"userEmail"]; [users addObject:user]; } return users; } -(BOOL)updateUser:(UserModel *)userModel dbName:(NSString *)dbName{ NSString *sql=@"update user set userName=?

,passWord=?,userEmail=? where userName=?"; NSArray *params=@[userModel.userName,userModel.passWord,userModel.userEmail,userModel.userName]; return [self execSql:sql parmas:params dataBaseName:dbName]; } @end


MainViewController是用户显示全部用户列表
AddViewController用于添加和改动用户界面的显示












IOS Sqlite用户界面增删改查案例

标签:insert   prim   data-   nsarray   res   cts   抽象   ace   通过   

原文地址:http://www.cnblogs.com/gccbuaa/p/6919047.html

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